摘要
利用GPS水准代替繁重的几何水准测量工作,必须确定高精度、高分辨率的似大地水准面。本文分别介绍了函数模型算法、随机模型算法和综合模型算法,并基于试验区域的GPS水准数据,通过各种算法的分类计算比较,验证了这几种模型算法的有效性和可靠性,结果证明最小二乘配置算法精度较高,并对实验结果进行三维仿真,可视化的分析似大地水准面的变化。
Using GPS leveling to replace heavy geometry leveling work must determine high - precision and high - resolution local qua- si geoid. This paper introduces the function model, stochastic model and integrated model algorithm, and based on the GPS leveling data of experimental area, through the calculation of various algorithms, the paper verifies the validity and reliability of the algorithms. Results show that the accuracy of the least squares configuration algorithm is higher. Through three dimensional simulated experiment results, we can visually analyze the change of local quasi geoid.
出处
《测绘与空间地理信息》
2014年第1期178-181,共4页
Geomatics & Spatial Information Technology
关键词
似大地水准面精化
数学模型算法
精度
三维仿真
quasi geoid determination
mathematical model algorithms
accuracy
three dimensional simulation
